Temperature changing system for tanks



Feb. 4, 1941. c. 5. BROWN TEMPERATURE CHANGING SYSTEM FOR TANKS Filed Jan. 20, 1959 If, m

II .l l I l 2 m WMI WK H HM Ill!!! 1! v T I LH l I I l l I I I I I l I l I l l I l I I l I l l I m ATTORNEY? UNITE srA PATE TEMPERATURE CHANGING SYSTEM FOR TANKS Carl S. Brown, Lakewood, Ohio, assignor to Glascote Products, Inc., Euclid, Ohio, a, corporation of Ohio Application January 20, 1939, Serial No. 251,951 8 Claims. (Cl. 257189) This invention relates to an improved temperajacket or. second tank 2!], which, when steam is ture changing system of tanks, and especially to usedas a heating medium, provides a steam jacka system wherein a liquid medium is applied in ct. This jacket is spaced from the side and bota film to the wall of the tank to obtain the desired tom walls of the tank l0, and may be provided 5 temperature change in the contents of the tank. with suitable supports 2|. The upper edge of 5 This, therefore, is the general object of the presthe jacket 29 extends substantially to the plane ent invention. of the head of the tank I 0, and an annular closure A more specific object of this invention is to plate 22, which is substantially flush with the provide a temperature changing system for top of the tank l0, bridges the gap between the tanks, wherein a cooling or heating fluid is jacket and the tank It]. 10

directed from a suitable supply through a plural- The jacket 26 is provided, adjacent its upper ity of orifices to the side walls of a tank, in such end, with an inlet opening 23, and an internally a manner as to substantially envelope the side threaded flange member 24, to enable the piping wall of the tank with a thin flowing film of fluid, of a fluid direct to the. interior of the jacket. Se-

and wherein the arrangement is such that clogcured to the inner surface of the side wall of the 15 ging of the orifices is minimized and for all pracjacket 20, adjacent its upper end, is an angle tical purposes eliminated, thus enabling the asmember 25 formed in a continuous annulus, the sembly of the tank and temperature changing horizontal flange thereof being welded, as at 26, system of a single permanent unit, and avoiding to the inner surface of the jacket 20, a slight disthe need for removal of the system for cleansing tance below the bottom of the inlet opening 23., 20 purposes. The vertical flange 21 of the angle 25 extends up- A further object of this invention is to provide wardly and is spaced a small distance from the a cooling system for tanks, wherein the tank and exterior wall of the tank l0. This provides a its contents may be heated by a heating medichannel 28 to receive the fluid from the inlet 23,

25 um, such as steam, and then quickly cooled by and distributes such fluid around the periphery 25 the application of a thin film of cooling liquid to of the jacket. the Walls of the tank. The fluid flows from the channel onto the tank Other objects and advantages of this inven- I0 through a series of equi-spaced vertically extion will become more apparent from the followtending slots 29, formed in the vertical flange 21 30 ing description, reference being had to the acof the angle 25. It will be noted that the walls 30, 30 companying drawing, wherein a preferred emwhich form the lowermost boundaries of the slots bodiment of the invention is illustrated, in the 29, are in a plane above the upper surface of the form of a jacketed tank, the jacket itself carrying horizontally extending portion of the angle 25, the channel for the fluid. This is one of the feaas well as above the upper surface of the inlet wires of my invention. opening 23. Thus, .a trap is formed, which 001- 35 In the drawing, Fig. 1 is a side elevation of an lects the sediment in the fluid and aids materialapparatus, illustrating my improved system; cerly in maintaining the slots 01'' orifices 29 open. tain portions of the apparatus being broken away A guard plate or baflle member is interposed to more clearly illustrate the internal .construcbetween the jacket inlet and the adjacent orifices tion thereof; Fig. 2 is a fragmentary horizontal 29, and serves to prevent direct flow through such 4 section, the plane of the section being indicated orifices, thus causing the fluid medium to be by the: lines 2-2 of Fig. 1. substantially evenly distributed around the jack- In the drawing, 1 have illustrated a tank W, et channel 28, an even film thereof enveloping the contents of which are to be cooled or heated. t t k 10, T i baffle member i shown in Fig. The tank is supplied with suitable inlet and out- 1 at 3!, as being welded to the closure plate 22 45 let openings, one of .which is generally indicated and extending downwardly to a point below the at Asillllstrated, the tank prises a lowermost plane of the slots 29 and circumfermetallic enclosed body, formed in a y W l n wn entially a distance sufficient to divert the flow manner, as for instance, by welding. However, of fluid medium, di ated in Fig, 2.

my improved apparatus will operate well with a The jacket 26 is provided with a suitable 50 non-metallic or coated metal tank. The temvalved drain, generally indicated at 33, as well perature change is accomplished by enveloping as with an overflow drain 34. The latter rethe external side wall of the tank It with a thin tains the liquid in the jacket below a compararunning film of cooling or heating fluid. To this tively low maximum height. The drain 34 is best end the tank I0 is preferably enclosed by a shown in Fig. 1, and comprises a liquid trap which not only limits the uppertliquid level in the jacket, but also provides a liquid seal which prevents the setting up of air currents within the jacket, which might affect the distribution of the film of fluid medium applied to the tank l0.

When steam is used as a heating fluid, the drain 3d serves as a steam trap. The water in the trap below the outlet then determines the maximum steam pressure in the space between the jacket and the tank. Sometimes it is desirable to raise the temperature of the contents of the tank with steam and then quickly cool the same. With my improved tempering system, the cooling fluid may be admitted to the channel 28 before the steam has become entirely exhausted from the jacket, and as the arrangement is such as to deliver a thin film of cooling fluid to the exterior of the tank, cooling commences immediately.

With certain fluids it has been found desirable to obstruct the flow of the fluid in the channel 2% to insure an even distribution of the fluid around the periphery of the tank I!) in all regions, especially those regions lying adjacent to the inlet opening 23. To this end I prefer to use a pair of vertically extending V-shaped members or dams, one of which is shown at on Fig. 2, and the other of which is similarly spaced on the other side of the axis of the opening 23. These plate members may be secured to the bottom wall of the angle 25 by welding or any other well known method, and are preferably about half the height of the vertical extent 2'! of the angle 25.

From the foregoing it will be seen that I have provided a temperature changing system for tanks, which will efliciently distribute a fluid to a-tank through a plurality of orifices in a channel which may be carried by a jacket, between the jacket and the tank. and I have so arranged the channel and the orifices therein as to prevent clogging of the orifices for all practical purposes.

I claim: 1. The combination of a tank, a channel surrounding the tank and having a substantially horizontal base and a pair of vertically extending walls, one of said walls being parallel with and spaced from the wall of the tank, and having a series of vertical slots extending downward from the top of the wall to points spaced above the horizontal wall, and an inlet passageway communicating with said channel, said passageway being spaced above the bottom wall of said channel, and a baiile member interposed between said passageway and the slots.

2. The combination of a jacketed cylindrical tank, an annular channel provided by an angle member formed into an annular ring, said member having a horizontal flange welded to the interior wall of the jacket adjacent its upper end, and a vertical flange extending upward from the horizontal flange adjacent to but spaced from the tank, said vertical flange having a series of vertical slots extending downward from the top of said flange to points spaced above the horizontal wall of said channel, said jacket having an inlet opening spaced above the bottom Wall of said channel, but below the bottom of the slots therein, and a bafile member interposed between the inlet opening and the slots and spaced from the bottom wall of said channel.

3. The combination of a jacketed tank, a channel carried by said jacketed tank intermediate the jacket and the tank and having asubstantially horizontal base and a pair of vertically extending walls, one of said walls being parallel with and spaced from the wall of the tank, and having a series of vertical slots extending downward from the top of the wall to points spaced above the horizontal wall, and an inlet passageway through said jacket'and communicating with said channel, a bafile member interposed between said passageway and the slots and spaced from the bottom wall of said channel, and means in said channel adjacent opposite ends of said baffle to partially damthe flow of liquid in the channel.

4. A temperature changing system for a vertical jacketed tank, comprising an open top horizontal channel made by an annular angle bar carried by the jacket between the tank and the jacket, and having a horizontal flange attached to the jacket and a free vertical flange, said channel being spaced from the tank and provided with a plurality of openings through its vertical flange, whereby a liquid cooling or heating medium may flow through said openings and impinge directly on the exterior of the tank and flow downwardly in a thin fllm along the wall of the tank.

5. A temperature changing system for a jacketed tank, comprising a channel carried by the jacket between the tank and the jacket, said channel having an inner upright wall with a plurality of slots leading downwardly and terminating above the bottom of the wall, whereby a liquid cooling or heating medium may flow through said slots and impinge on the exterior of the tank, and wherein the channel is deeper than the slots, whereby sediment may collect in said channel without obstructing the slots therein.

6. The combination of a jacketed cylindrical tank, an annular channel provided by an angle member formed into an annular ring, said member having a horizontal flange welded to the interior wall of the jacket adjacent its upper end, and a vertical flange extending upward from the horizontal flange adjacent to but spaced from the tank, said vertical flange having a series of vertical slots extending downwardly from its upper edge.

7. In a temperature changing system for tanks, an open top conduit surrounding the tank adjacent the top thereof and having a side wall spaced from and substantially paralle1 with the wall of the tank, means to conduct liquid to said conduit, said conduit side wall having a plurality of horizontally spaced vertically extending elongated slots, each slot extending upward from a point adjacent the bottom of the conduit toward the top of said conduit wall.

8. In a temperature changing system for vertical walled tanks, a channel open at its top surrounding the tank adjacent the top thereof and having a side wall spaced from and substantially parallel with the wall of the tank, means to conduct liquid to said channel, said channel side wall having a plurality of horizontally spaced vertically extending elongated slots, each slot extending upward from a point adjacent the bottom of the channel to the extreme top of said channel wall, whereby a clogging of the lower portions of the slots due to a collecting of sediment in the bottom of the channel will be compensated for by an attendant rise in the liquid level in the channel, and due to the elongation of the slots the volume of liquid passing therethrough to the wall of the tank will remain unaltered.

CARL S. BROWN. 

